DE3463644D1 - Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus - Google Patents

Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus

Info

Publication number
DE3463644D1
DE3463644D1 DE8484890087T DE3463644T DE3463644D1 DE 3463644 D1 DE3463644 D1 DE 3463644D1 DE 8484890087 T DE8484890087 T DE 8484890087T DE 3463644 T DE3463644 T DE 3463644T DE 3463644 D1 DE3463644 D1 DE 3463644D1
Authority
DE
Germany
Prior art keywords
dewatering
sludges
improving
treatment
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8484890087T
Other languages
German (de)
Inventor
Michel Dipl Ing Schweizer
Erwin Puschenjak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine AG
Original Assignee
Voestalpine AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of DE3463644D1 publication Critical patent/DE3463644D1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

1. Process for the pre-treatment of sludges for improving their flocculation and/or dewatering behaviour in a subsequent dewatering apparatus, in which optionally polyelectrolytes are added as flocculating adjuvants, characterised in that the sludges are concentrated to a percentage of solids of at least 5% by weight, that prior to mechanical dewatering liquid combustible organic additives such as oils, particularly waste oil, are added to the sludge to be dewatered in an amount of from 0.5 to 50% by weight in relation to the percentage of solids of the sludge, and that in addition to the liquid combustible organic additives oxidizing agents, particularly hydrogen peroxide, oxygen or air, are added.
DE8484890087T 1983-05-30 1984-05-15 Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus Expired DE3463644D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT197683 1983-05-30
AT197483 1983-05-30

Publications (1)

Publication Number Publication Date
DE3463644D1 true DE3463644D1 (en) 1987-06-19

Family

ID=25597315

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484890087T Expired DE3463644D1 (en) 1983-05-30 1984-05-15 Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus

Country Status (6)

Country Link
EP (1) EP0127604B1 (en)
AT (1) ATE27136T1 (en)
DD (1) DD218609A5 (en)
DE (1) DE3463644D1 (en)
DK (1) DK264884A (en)
HU (1) HU194130B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT388724B (en) * 1985-06-12 1989-08-25 Voest Alpine Ag Process for producing a refined product from sewage sludges
CN108467775B (en) * 2018-06-06 2023-09-12 长春工程学院 Waste engine oil regeneration device and regeneration process by micro-oxidation method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE135830C (en) *
US3530067A (en) * 1968-06-06 1970-09-22 Fmc Corp Method of treating sewage
US4196077A (en) * 1972-08-07 1980-04-01 Exxon Research & Engineering Co. Sewage sludge dewatering
JPS5245582A (en) * 1975-10-09 1977-04-11 Tokai Denka Kogyo Kk Solid-liquid separation method of organic waste fluid sludge
US4210531A (en) * 1977-12-15 1980-07-01 American Cyanamid Company Process for dewatering mineral concentrates

Also Published As

Publication number Publication date
DK264884D0 (en) 1984-05-29
DD218609A5 (en) 1985-02-13
ATE27136T1 (en) 1987-05-15
HUT40378A (en) 1986-12-28
DK264884A (en) 1984-12-01
EP0127604A1 (en) 1984-12-05
HU194130B (en) 1988-01-28
EP0127604B1 (en) 1987-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee